HMS中孔骨架上嵌入Co活性中心的研究

Study of Cobalt-containing Hexagonal Mesoporous Molecular silica

采用过渡金属元素Co做嵌入的杂原子 ,在室温下合成了Co -HMS ,以XRD、FT -IR、SEM等对样品进行了表征 ,并对影响合成催化剂的因素及催化剂催化氧化性能作了初步考察 ,为Co

Cobalt-containing hexagonal mesoporous molecular silica(Co-HMS)was prepared by using neutral dodecylamine (DDA)as templating agent at room temperature,and characterized by means of XRD,FT-IR,SEM,etc..XRD and FT-IR measurements indicate that the incorporation of Co obviously decreases the assembled effects of templating agent,and deteriorate the quality of the 100 reflection of mesoporous materials and the frame of Si-O.The catalytic tests shows Co-HMS is a kind of effectice catalyst for hydroxylation of phenol with 30% H 2O 2 in aqueous solution,but have no catalytic activity in the reactions of epoxidation of styrene and cyclohexene.